The Isle of Wight happens to be really actually quite near where I live on the South Coast. In fact if I was *much* fitter, I might even be able to swim there, if I didn't mind getting run down by the odd container ship.

The Isle of Man is a bit further north, above Wales just off the West Coast. Scilly Isles are off the far southwest (West of Cornwall). Orkneys, Hebrides etc etc are waaaaay north off Scotland. Channel Islands are actually nearer France and are Guernsey, Jersey, Alderney, Sark and maybe some others that I forgot.

Here have a Wikipedia Geography lesson on me!
Isle of Wight (http://en.wikipedia.org/wiki/Isle_of_Wight)
Isle Of Man (http://en.wikipedia.org/wiki/Isle_of_Man)
Scilly Isles (http://en.wikipedia.org/wiki/Scilly_isles)